bates



July 21, 1925.

1,546,361 A. M. BATES MACHINE FOR FILLING AND WEIGHING BAGS OriginalFiled March 22 1920 5 Sheets-Sheet 1 Int 6721502" July 21, 1925.1,546,361

A. M. BATES MACHINE FOR FILLING AND WEIGHING BAGS Origin l Filed llarch22, 1920 5 Sheets-Sheet 2 July 21, 1925. 1,546,361

A. M. BATES MACHINE FOR FILLING AND WEIGHING BAGS Original Filed March22, 1920 5 Sheets-Sheet 5 W rm g fliyn'.

July 21, 1925.

A. M. BATES MACHINE FOR FILL ING AND WEIGHING BAGS s Sheets-Shet 4Original Filed March 22 1920 |lillllltllilllTllllti Q Invanor flaZeZmer1%3Q1f5. WW

7 flttorngyfi 5 Sheets-Sheet 5 A. M. BATES MACHINE FOR FILLING ANDWEIGHING BAGS Original Filegi March 22. 1920 llll ll ll II X July 21,1925.

Patented July 21, 1925.

cmeagp, ILLINOIS; gessxenon :nq llATES VALVE BAG com ADELMER M. BATES,01

m, or 'CBTGAGO: mmOIS;-,A

PATENT 1 OFFICE.

conrom'mdn'og wnsm vmemm.

' mm. rmnnm Am) wmenmdills,

Applicitlon mm Karen 22.1920; semrmrasmsn: R'ejlewed May a, 1925.

T 0 all who-m it may concern;

n. citizen of the Unitecfistafeg;'residing'fit Chicago, in the'cou'nty-"f 'CGlfajid 'Stat 5 of Illinois, hai'e inventdgfeitainmew 'aili li nsefill Improvement" injMaahin-s fin-T1115? mg and Weighing.em-whim tll fcil l lowing is a"specificatibn.'

sec'tibrl iil'o'nfi the line iqn' mm: the line around the tube so thatits opposed edges can be drawn together and stretched around the tube bythe rollers B which hold the edges together for the sewing machine Bwhich forms .the ,t ube which is then drawn up by the: rollers-i3? andpasses 'gilroiind the' rounded upper end of the mandrel down into itsinterior around the filling tube the tube is drawn db'wn along 'thetube-B by the rollers B which engage'tlre'fahiic tube and press itagainst anenla-rged portion of the filling tiibe'nn'd feed it downtoward the storage space. where the tube is.

shown puckered up ready for use. e sewing machine and the two sets ofieeding rollers are driven by belts as shown froma suitable source: ofpower such-for inetaji'ce as the electric motor as shown.

At a point above the -weighing latform, the feeding tube iisenla-n edostatt-C, andfthere is a spr-i'rw girdleencircling the tubet at thatoint-to 1101a back -the fabric tube andli-n'xit-the-dDWnward;-ilow-ofcomeithe weight of the grid mhen no tilledtube -on it. but not :great enough to sup. ort the loadedplatiormand-tube. The gir' e C"-isslidabl-"y mounted-on the rod-0*, but-infrictional -enga ementrtherewith, so that while normally fixed thereon,it will slide therealon'g =inres onse to sulficient ressure or tension.As 1'. e 'rod-C isli-fted, the rgi'rdle'C normally-lifts withit, but may1 downwaudr movement movement of the rack to engage the clutch andthereby provide a driving power to continue suchdownward movement. D isan automatic latch adapted to hold the bag grid inthe lqwer osition onceit as beexif forcgd there-by t e-"gear and reel: until the operatorreleases it to permit 'reverse movement under the urge of the'cmuiterweiglit.

'l lie-lil'l-i ri tnbe 'B is Supported within the tube B by the frame Ewhich is clear oi the top- 'offlie latter tube so as not to interferewithctl e passage of the bag fabric.

'E' is a filhiig hopper mounted 'on the upper end of the fillingtubeand}? a feed spout it, is .a .hollow' coms d z a.nd.finisl1.ieed tubepassmggdown. within theieedtube, :It. terminates- -at 1ts-lowe1; qnd inascrew conveyor Efiwbich is adapted to ,-force the material fatt -intotliq,t1 .1 l e ont.into .-thebag 'tube surrounding its end whexr it isrotated. .Th'is screwuppgkgljrqight ,ex tjencl fifiir-ther in me abithee eesem t n is quite enough ,topacltntheinto the tube sg fficienhpressure. in at downward; Hiredtrondgcausg-the l) supportinggrids-tosruovedqmnnto fihrowlt e. clutch to sta s a material. has Thefeeder shaft n ,1!" rodket airiE driven b. theshsi h ipw%chgisin drivenfrmii li a glgitch flit-controlled by a tog 1e dznt anislide-rodE with aroller i at itsgandr illhislfrpllerjs adapted to be dragwnmver to i :heclutch by the V o the cam E", and to :forcedibacll to engage :the clutchby thercam E f-when the'grid C returns-to its upperposition. SE -is ashutter-controlled be 'd-raiwndown by the ressure applied toby-the-oontrdlirodllll, spring held lcvcr E the bag tube pas'sin witin'it; -C is-a reel: 'Efwvhereby the operator after associated with anadapted to -m9ve with the rod. It is 'in-mesh with a-gear C {driven by a-belt-C 'from the c'ountershatft -C and clutch-G so that when the to'lejpint is in the position as shown the-c utch 'is disengaged and :thegear -is -not driven and when the toggle is closed power applied tothe;pulley' G drives the gear.

= The toggle joint D which =controls =tbe drive of the rack -C isactuated by 'the slidable bar D carried by the upright D. At the endofthebar-is a-pivoted link-D tree to move up into-a =vertical position butheld against downward movement below the horizontal by the lug D. Thislink'carries a roller D adapted to be engaged b the cam D as the rackpasses down to row out theclutch, and-adapted to swing back out-of linewhen it is engaged by the top of the cam D but to be engaged by theworking surface of the cam on a downward Hie force feeder has done itswork and ceased its .action, canclose it off so as -to reveal; thedropping into the bag during e weighing operation ofany material fromthe force ieeder which might ifnot prevented disturb the weighingoperation.

After the force feed apparatus has done its work 3nd,.the.grid hasdescended till the tube rests on the scale platform;theoperator-startsthe electric motor F which drives the-screw conveyor 1and feeds a supply of materiid' fro xn=the chute F to discharge it intothe finish feed 'tube E whence it drops downrto the sievaF whichcomprises two arallelf er'forated .pla'tes F. one of which is fixed, t eother being rotated by the shaft E WlllCl'IiS driven by the miter gearsF from the screw conveyor shaft, the arrangement bein such that as soonas the scale is counterbalanced by the desired weight of material, theoperator will stop the motor soureeiofpower by the belt E rotation ofthe sieve will-cease and no ther feed will take'-ple ce.'

'It will be] evident that ivh-ilel have shown in my drawings"zin*op'er':itive device, still many changes might be made in size;shape. and arrangement ofpertsend '-I "wish there fore that my drawingsbe regarded as ina' sense, diagram'r'ne ltie 1 I have shovfiiinyzrplieratusen angedfto take the fabric from 'e r'oll remake-"1t intoatube and fill and"-'form' bags-therefrom! Obviously with only' a slightdifference" in adjustment; a tube made "on some other ma, chine might bethreadedonto the' filling tube and filled iri'e'x'actly thesame -manner,the bags being'separatelyffilled, and out off from the end thereoftindeven 'witlioiitjeny clifiiculty, it would be'nossi ble tothredd'separate previously formed b'zi'gs' 'ontothe' filling tube andfill them in exactly hei's-a ne way as the tube-.isifilledf to remi -1'"bags.

The use and tipe'rzititili"of Ihv' invention are 'as follows? Theoperation of ;tl1e *bagjtube f ormlng part of thezippairefius iscontinuous, endithe rate of feed is su'chfthat 'the-bag'fab'ric w'illfbe drewnfofi the" storage roll fed between the flconceve tomes rolls{and started the fofx'riingqiiibe, ";.i ts"dg's ll ibe fldraivn togetherI end 'the :Eofriid tube will be drewn' up towerdthe' end {of thefirming tube and mefi'urrwn it'to be fed to the 'storige zone where'itfis puckered about the filling tiibefimi that threfwill alwaysbe. asupply of biig tubeflmdi'e their-is needed to supply the normal- *i rte"'ofde mand .of' formed 'bag s'f the idee being that unless there issome [slack times 5 between the tube filling and=weighin"" and the tubeforming operations; the wig ing vgill be interfered with andthesewingapparatus will be unable to do a good'jobbf'sew ing on the tu be.

Starting with the loweri encl or 'the "bag tube sewed across and inthepos'ition sh0wn in dotted lines in Fig. 2 tlie lower feeil'c0n: trolcam will throw tlieclutch in and'the screw packer will beopersitin'g'?to'-force'ma-' terialdo'wu into the'end ofthehegFtube, thiswill cause the 'tlibe"'tb moveslowly downward carrying 'the grid andassociated parts with it'at'a rate governed by'the'rate at which the;packer is i.or(:'i"f1 i1 t'hr'neteri'el into the tube. "This willeontinue until "the lower cam on the rack throws-the drive clutch in andstarts the gear drive. to fore ing the grid dow'h. "Ait abdut tli'e sa'rn e' time as this takes place the uppermost camwill throw the feedclutch out anditlie operation of the serew'packer willc'easelfThedownward movement of the ,tub'e'end grid" will continue untilthe automatic latch goes into operation and locks"the'griddown with itsupper surface below th'e'upper face of-the scale platform 'en'dwit h thetube'resting -on tl1e' "sco.le. 'Atthe same time the uppenrdrive I earnwill throw tlie'elutch out and-thus the" tube feed will be stopped andthentubevis ready to be weighed.

With-the bag restin onthe=scale; ;the operator-vvill stero tlie nishfeed and? esp-theserew conveyor- 'feeds the material .into. tho' inishfee d tube;2':-thei-sieve: willvrotate to; pzevide' aigentle: flowi of*inateriel which iwi l sufficiently 2 slow! and even not to a interfere;with -thei'=-a'ccurecy 'of the 'weighi I ,0 era:- tion ehd wh'ichcanhlso-betume 10 win stanter "when the "amount fed! in isienough tocounterbalancethe weight set ro'nzthe' scale; beam? The force feeder isa large and heavyde vice adapted 'to feed large quantitiestof materialet-e relatively low-velocity but-ht high;

pressure'and when its a operation there" i's sure'--td ber 'a,oer-tantamount. ofi material; left in the :systeinnend theronly .wey to:be, sure lthatzsorne' of: tbis'doesmot, drop date; the filled"tube'endcause =inaocurateiweigh-i in h-is to: provide thishutter-asindicatedwiiiolLmay-by the hand ofvthe-oper'ator-be thrown up. to :closethe, screw: :feeder Ewhile the finish= feed working. -i-I-.ihave. .shownonly a, hand pull rope ion 5 this 2 but: clearly any "arr-ing edientmight :be. used! I. The. es-: sential thing however is that-:thoiclosurefor theforce feed: must Zbe at":the-extreir;1e lowest point'iso that?r'iothingv that; oontained in=the'- forc'e-feed:systeinwhen the :forfceZfeed stops "cari- *by zany chance geti -,in't0- the 3 tube.while:it-,=is :being -.we'ighe'd. ezhifteiiit-he propen amount ormaterial has been --fed:. to' :and weighedslinto the =tube,; and thefeedingiprooess-has :stopped, .the :oper; atbr will s'tai-rti-the sewingmachineand :the feed screw= will drive Fit. .zicrossthe (width-10f thebeg sewing'upthetube abovethe charge therein--This-.-iinachinefist-normally a two needle mzichine 50 that it makestwo parallel seams;and':it1will-;also normally be provided with a: knifesoerra'n ed that as the; seams aiefiizide' the bag-fabric will be outbetween them and the filled bag will thus be formed from the tube andthe tube :will- ,be left with a closedend ready fo17;andtl1er-load.,; Atthis timertlie operator:will;-tl1rowthe bag oil the grid end releasethe'latchi;,iThe wei ht of the counterweightiwvillwraise.the gri andassociated parts ,untilthe end of thetube will be beck in the dottediline position of Figr2. The rod rise's and atjithe same time thefrictional cont'act'of; thelrod with .the sleeve t associated (with thei spring girdle will cause the girdle to travel up the feeding tubeto-draw the closed tube end-up to 'the positioh-uit is to assumewhenmthe filling action starts. The puckered bag tube will ofcourse'ofi'er no l-resistante; 0' any consequence to this movement oftheagir'dle, and as the tube'is filled enddrawn outethe girdle will movedown to the position shown a primary feeding device adapted to feedcoarse materials, a shutter adapted to stop all feed from said primaryfeeding device, and 21- secondary feeding device adapted to feed finematerials.

13. In apparatus of the class described,

it the bulk of a charge for a package, and a secondary feeding devicecomprising a screen including a movable screen element, whereby finematerials may be sifted into the package to complete the char e.

14. In apparatus for filling and primary feeding device adapted to feed.

weighing bags, means to compact the bulk of a charge into a bag includmgmeans to place under 1 a charge has been compacted therein, and 2 meansfor dropping into the baadditional material While it is on said weigiingmeans. In testimony whereof, I affix my signature this 12th day ofMarch 1920.

ADELMER M. BATES. c

